I think you're missing the point.
Out of the box, on a Linux system, the backspace key works as
intended. Period. You had bogus configuration stuff in your .vimrc,
which is not Linux's fault.
So it sounds like you're complaining about the fact that it's possible
to screw up something so fundamental as the backspace key in the first
place. But since people do still log into Linux systems on serial
consoles, the ability to deal with backspace keys that aren't
necessarily the one on the attached USB keyboard is still valuable.
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